#include<bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using mint=modint998244353; //1000000007;
using ll=long long;
using pp=pair<int,int>;
#define sr string 
#define vc vector
#define fi first
#define se second
#define rep(i,n) for(int i=0;i<(int)n;i++)
#define pb push_back
#define all(v) v.begin(),v.end()
#define pque priority_queue
#define bpc(a) __builtin_popcount(a)
int main(){
  int n,k;cin>>n>>k;
  vc<mint>dp(k+1,0); dp[0]=1;
  rep(i,n){
    vc<mint>nd(k+1,0);
    for(int j=1;j<=k;j++)nd[j]=dp[j-1]/(i+1);
    if(i==n-1){
      dp=nd;
      break;
    }
    for(int j=1;j<=k;j++)dp[j]+=nd[j];
  }
  mint ans=0; 
  for(auto au:dp)ans+=au;
  cout<<ans.val();
}